System for monitoring boiler efficiency of thermal power station on line based on identification of calorific capacity of fire coal
A power plant boiler and monitoring system technology, applied in the field of monitoring systems, can solve problems such as unsatisfactory, boiler efficiency and actual value deviation, and achieve the effects of easy data, good versatility and robustness, and improved identification accuracy
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[0041] This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation mode and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
[0042] The boiler in this embodiment meets the following conditions:
[0043] 1. The boiler is HG-1025 / 17.3-WM18 type, the boiler load is 300MW, the boiler adopts subcritical, natural circulation, one reheating, double arch single furnace, "W" flame combustion method, tail double flue, flue gas Baffle temperature adjustment, balanced ventilation, solid slag discharge, open-air layout, all-steel frame suspended steam drum furnace;
[0044] 2. The combustion and heat exchange processes in the furnace can be considered separately;
[0045] 3. The external heat flow of the heat exchanger is evenly distributed along the tube length and circumference;
[0046] 4. Only radial heat exchange is considered for the metal o...
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